PIC18F1230T-I/SS - 8-bit 40MHz MCU, 4KB Flash | Microchip | SSOP-20
MPN: PIC18F1230T-I/SS ✓ Hoạt độngPIC18F1230T-I/SS Tóm tắt
An 8-bit PIC microcontroller is a low-power, deterministic RISC processor core designed for embedded control. It sits in a hierarchy of MCU (microcontroller) -> 8-bit MCU -> PIC18 family -> Microchip MCU portfolio -> semiconductor. The PIC18F family adds enhanced instructions, hardware multiply, and C-friendly addressing over the PIC16 baseline, while retaining byte-level predictability required for real-time control loops.
Key features include a 3-channel 10-bit ADC with up to 6 analog inputs depending on package, 2 16-bit timers, 1 enhanced USART, 3 analog comparators, a 3-channel motor-control PWM (Power Control PWM) module, and an internal 8 MHz oscillator with PLL for the 40 MHz system clock. The on-chip nanoWatt Technology provides multiple idle and sleep modes that drop active current into the microampere range, making the device suitable for line-powered and always-on control nodes.
Architecturally, the PIC18F1230 combines a Harvard bus with a 16-bit instruction word fetched as 2 bytes from flash, an 8-bit data path, and dedicated motor-control peripherals that offload PWM generation and complementary drive from the CPU. The Power Control PWM module supports independent time bases, dead-band control, and fault inputs, which is uncommon at this pin count and price point.
Typical applications include single-phase BLDC and DC motor control for small appliances and fans, sensor signal conditioning with on-chip comparators, low-cost HVAC damper/valve actuators, and LIN-bus automotive body electronics using the integrated USART and the 8 MHz internal oscillator. The 20-SSOP footprint also fits into compact sensor interfaces and 5V industrial control nodes.
When designing, note that the internal oscillator accuracy of +/- 1 to +/- 2 percent is acceptable for UART comms at low baud rates but external crystal or resonator may be required for CAN or high-speed LIN. The SSOP-20 thermal envelope is generous at 5V industrial currents, but brown-out reset configuration (BOR) must be enabled in configuration words for safety-critical motor control.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet 39758D.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1230T-I/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18F1230T-I/SS (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), Core Architecture, PWM Module, Mounting Type.
PIC18F1230-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1230-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F1330-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1230T-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1220-I/SS
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F1230T-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 8-bit RISC, Harvard |
| Program Memory (Flash) | 4 KB (2K x 16) |
| SRAM | 256 bytes |
| Data EEPROM/HEF | 128 bytes |
| CPU Speed | 40 MHz / 10 MIPS |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| ADC | 10-bit, 3 channels |
| Timers | 2 x 16-bit |
| Communication Peripherals | 1 x EUSART (LIN-capable) |
| Analog Comparators | 3 |
| PWM Module | 3-channel Power Control PWM with dead-band and fault input |
| Internal Oscillator | 8 MHz with PLL (4x) to 32 MHz system, PLL enable for 40 MHz |
| Hộp | 20-pin SSOP (5.30 mm body, 208 mil) |
| Kiểu lắp đặt | Surface Mount (Tape & Reel, 'T' suffix) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F1230T-I/SS
| Chân 1 | RA0/AN0/C1IN+/PWM0 — GPIO/analog input/comparator input/PWM channel 0 |
| Chân 2 | RA1/AN1/C1IN-/PWM1 — GPIO/analog input/comparator input/PWM channel 1 |
| Chân 3 | RA2/AN2/VREF-/C2IN+/PWM2 — GPIO/analog input/VREF-/comparator input/PWM channel 2 |
| Chân 4 | RA3/AN3/VREF+/C1IN1- — GPIO/analog input/VREF+/comparator input |
| Chân 5 | RA4/AN4/C2IN1- — GPIO/analog input/comparator input |
| Chân 6 | RA5/AN5/C2IN1+/HLVDIN — GPIO/analog input/comparator input/HLVD input |
| Chân 7 | VSS — Ground reference |
| Chân 8 | OSC1/CLKI/RA7 — Crystal/clock input or GPIO |
| Chân 9 | OSC2/CLKO/RA6 — Crystal output or GPIO |
| Chân 10 | RC0/PWMFLT0 — GPIO/PWM fault input |
| Chân 11 | RC1/PWMFLT1 — GPIO/PWM fault input |
| Chân 12 | RC2/CCP1 — GPIO/Capture/Compare/PWM 1 |
| Chân 13 | RC3/SCK/SCL — GPIO/SPI clock/I2C clock |
| Chân 14 | RC4/SDI/SDA — GPIO/SPI data in/I2C data |
| Chân 15 | RC5/SDO — GPIO/SPI data out |
| Chân 16 | RC6/TX/CK — GPIO/EUSART TX/clock |
| Chân 17 | RC7/RX/DT — GPIO/EUSART RX/data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | MCLR/VPP/RE3 — Master clear reset/programming voltage |
| Chân 20 | VDD — Positive supply 4.2V-5.5V |
Ứng dụng tiêu biểu
PIC18F1230T-I/SS phù hợp cho 6 Áp dụngs: Single-Phase BLDC Fan Motor Drive, Small DC Brushed Motor Speed Control, LIN-Bus Automotive Body Electronics, HVAC Damper and Valve Actuators, Industrial 5V Sensor Signal Conditioner, LED Lighting Color/Brightness Controllers.
Single-Phase BLDC Fan Motor Drive
The PIC18F1230T-I/SS drives 12 V to 24 V single-phase BLDC fans via its 3-channel Power Control PWM (PCPWM) module with programmable dead-band and fault shutdown, eliminating external PWM controllers. The 3 on-chip analog comparators provide hardware overcurrent and back-EMF zero-crossing detection at zero CPU overhead, while the 10 MIPS core handles the closed-loop speed PI in firmware. Compared with discrete 555-based fan drives, the PIC18F1230 cuts BOM by 30 to 40 percent and adds serial commandability through EUSART for smart-fan telemetry.
Được đề xuất
Small DC Brushed Motor Speed Control
For 5 V to 24 V DC brushed motors in appliances and toys, the PIC18F1230T-I/SS uses the PCPWM with complementary outputs and dead-band to drive a half-bridge or full H-bridge, with one analog comparator monitoring current via a shunt resistor for closed-loop torque limiting. The 4.2 V to 5.5 V supply range matches the 5 V industrial rail directly, and the 256-byte SRAM accommodates small control loops without external memory. Drop-in upgrade path to PIC18F1330 is available if the application later needs 3-phase sensorless FOC.
Được đề xuất
LIN-Bus Automotive Body Electronics
In automotive body modules such as mirror adjusters, seat controllers, and window lift nodes, the PIC18F1230T-I/SS handles LIN 1.3/2.0/2.1 communication via its integrated EUSART at baud rates up to 19.2 kbps with the internal 8 MHz oscillator calibrated to within +/- 1 percent. The 128-byte EEPROM stores node configuration and diagnostic trouble codes across power cycles, and the 10-bit ADC reads thermistor or potentiometer position feedback. For under-the-hood AEC-Q100 projects, the same firmware ports to PIC18F 'K' automotive-grade variants in matching SSOP-20 footprints.
Được đề xuất
HVAC Damper and Valve Actuators
HVAC zone dampers and proportional valves require a low-power MCU with on-chip comparators and PWM - the PIC18F1230T-I/SS delivers both, with nanoWatt Technology idle currents under 1 microampere for battery-backed or trickle-powered installations. Its 3-channel Power Control PWM can position a 24 V actuator while the third comparator monitors end-stop current for jam detection. The industrial -40C to +85C temperature grade supports unconditioned plenum installations where commercial-grade parts would fail.
Được đề xuất
Industrial 5V Sensor Signal Conditioner
The PIC18F1230T-I/SS conditions analog sensor inputs in industrial 4-20 mA loops, RTD bridges, and thermistor front-ends with its 10-bit ADC and 3 analog comparators. The EUSART outputs calibrated linearized data over RS-232 or RS-485 (with external transceiver) to a PLC. NanoWatt sleep modes extend battery life in remote wireless sensor nodes using the same SSOP-20 PCB as wired counterparts, enabling platform reuse across product variants.
Được đề xuất
LED Lighting Color/Brightness Controllers
Architectural and stage LED drivers benefit from the PIC18F1230T-I/SS's 3-channel Power Control PWM to drive RGB channels with 10-bit resolution per channel, providing 30-bit color depth without an external LED controller IC. The internal 8 MHz oscillator with PLL produces flicker-free PWM at 40 MHz, and the EUSART accepts DMX-512 or proprietary serial commands. Industrial temperature grade supports outdoor installations; EEPROM stores scene presets across power cycles.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1230T-I/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F1230-I/SS | PIC18F1230-I/P | PIC18F1330-I/SS | PIC18F1220-I/SS |
|---|---|---|---|---|---|
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin DIP - different | 20-pin SSOP - same | 20-pin SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 4 KB | 4 KB | 4 KB | 8 KB | 4 KB |
| SRAM | 256 B | 256 B | 256 B | 256 B | 256 B |
| CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| PWM Channels | 3 (Power Control PWM) | 3 (Power Control PWM) | 3 (Power Control PWM) | 3 (Power Control PWM) | 2 (standard CCP) |
| Analog Comparators | 3 | 3 | 3 | 3 | 2 |
| ADC | 10-bit, 3 ch | 10-bit, 3 ch | 10-bit, 3 ch | 10-bit, 3 ch | 10-bit, 3 ch |
| Operating Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
Bảo phân biệt quan trọng
- Dedicated Power Control PWM with hardware dead-band and fault input (vsPIC18F1220-I/SS)
- 3 on-chip analog comparators for current/voltage sensing (vsPIC18F1220-I/SS)
- Drop-in upgrade path to 8 KB flash for sensorless FOC (vsPIC18F1330-I/SS)
Ghi chú thiết kế
Decouple VDD (pin 20) with a 100 nF X7R ceramic placed within 3 mm of the pin, plus a bulk 10 uF tantalum or aluminum polymer on the same rail. The PIC18F1230T-I/SS draws 12 to 17 mA active at 40 MHz / 5 V; the on-chip 8 MHz oscillator with PLL is the recommended clock source for low-EMI designs. Estimated: total 5 V rail budget including GPIO source current should reserve 30 mA per device headroom.
At 5 V operation the PIC18F1230T-I/SS dissipates roughly 70 mW worst case, so SSOP-20 thermal resistance of 90 C/W produces a 6.3 C rise above ambient - well within industrial limits. Estimated using theta_JA of 90 C/W from the SSOP-20 family. The exposed-pad variants (PIC18F1230T-I/ML in QFN) offer theta_JA near 30 C/W for tighter thermal envelopes in sealed enclosures.
Route the MCLR/VPP/RE3 pin to a 10 kohm pull-up to VDD and place the ICSP programming header on the board edge for production programming. Keep the OSC1/OSC2 traces short (under 10 mm) and guard them with a ground pour to avoid coupling noise into the PLL. The Power Control PWM outputs (PWM0/PWM1/PWM2 on RA0/RA1/RA2) should fan out with matched trace lengths to the gate-driver inputs to avoid duty-cycle skew.
Do not assume the internal 8 MHz oscillator is accurate enough for EUSART comms above 38.4 kbps without OSCTUNE calibration - factory trim is +/- 1 percent, drifting +/- 2 percent over temperature. Always enable the Brown-Out Reset (BOR) bit in CONFIG2L for motor-control safety; a brown-out event without reset can cause the Power Control PWM to enter an undefined state and drive the half-bridge shoot-through. The DATA EEPROM requires the EECON1 WREN bit to be set before each byte write - firmware omitting this silently fails.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip PIC18F1230 product page. Industrial temperature grade only; no AEC-Q100 variant in this SSOP-20 package. Lead-free and halogen-free per Microchip environmental certifications.
